Who invested in QT Imaging

2 rounds we have observed, with the 3 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Healthcare

Raised 6 months ago

Funding summaryUpdated 26 Oct 2026

$28Mraised across 2 rounds since 2025, from 3 sources

$18MRound$10MRound

Latest round: Round, $10MMay 2026
Biggest round: $18MRound · Oct 2025
Investors: 3 (1 led)

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026

$18MRound$10MRound

First round: Round, $18M
Biggest round: $18M
Between rounds: 7 months

The rounds

May 2026
Round$10M1 returning
- National Cancer Institute (NCI)
Source recorded
Oct 2025
Round$18M3 new
Reported by Firms' own news pages and 1 other

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Round2025Round2026National Cancer Institute (NCI)

Sio Capital ManagementLLynrock Lake Master Fund LP

Everyone who backed them

National Cancer Institute (NCI)Investment firm2rounds

Sio Capital ManagementInvestment firm1round, led 1

Lynrock Lake Master Fund LPInvestment firm1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about QT Imaging

Who invested in QT Imaging?

QT Imaging's investors include National Cancer Institute (NCI), Sio Capital Management and Lynrock Lake Master Fund LP.

How much has QT Imaging raised?

QT Imaging has raised $28M across 2 rounds since 2025.

When did QT Imaging last raise?

QT Imaging's most recent round was an Undisclosed round of $10M in May 2026.

What was QT Imaging's biggest round?

QT Imaging's largest round on record is $18M (Undisclosed round), in Oct 2025, led by Sio Capital Management.

Who backed QT Imaging first?

QT Imaging's first round on record, in Oct 2025, was backed by Sio Capital Management, National Cancer Institute (NCI) and Lynrock Lake Master Fund LP.